Identify the correct statement about function f(x) = max(x^2 -1, … - Vidyadip

MCQ

Identify the correct statement about function $f(x) = max(x^2 -1, 7 -x^2, 5)$

✓
$f(x)$ is not differentiable at $4$ points
B
range of $f(x)$ is $\left[ {3,\infty } \right)$
C
$f(x)$ is an injective function
D
$f(x)$ is discontinuous at $4$ points.

✓

Answer

Correct option: A.

$f(x)$ is not differentiable at $4$ points

a

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